Waze is pretty good at keeping me from sitting in DC traffic. I don't cross the Potomac, so there are plenty of alternative routes to get me downtown. Today it took an hour to get from the beltway to essentially the convention center. But waze rerouted me at least three times and never had me sitting in stopped traffic.
Regional Coordinator: Mid-Atlantic, US
Verizon, Nexus 6, Android 6.0.1, Waze 184.108.40.206